/*
 * The contents of this web application are subject to the Mozilla Public License Version 
 * 1.1 (the "License"); you may not use this web application except in compliance with 
 * the License. You may obtain a copy of the License at http://www.mozilla.org/MPL/.
 * 
 * Software distributed under the License is distributed on an "AS IS" basis, 
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License 
 * for the specific language governing rights and limitations under the License.
 * 
 * The Original Code is owned by and the Initial Developer of the Original Code is 
 * Composite A/S (Danish business reg.no. 21744409). All Rights Reserved
 * 
 * Section 11 of the License is EXPRESSLY amended to include a provision stating 
 * that any dispute, including but not limited to disputes related to the enforcement 
 * of the License, to which Composite A/S as owner of the Original Code, as Initial 
 * Developer or in any other role, becomes a part to shall be governed by Danish law 
 * and be initiated before the Copenhagen City Court ("K�benhavns Byret")            
 */

using System;
using System.Collections.Generic;
using System.Reflection;


namespace Composite.Core.Linq
{
    internal sealed class PropertyInfoValueCollection
    {
        private Dictionary<PropertyInfo, object> _propertyValues = new Dictionary<PropertyInfo, object>();


        public void AddPropertyValue(PropertyInfo propertyInfo, object value)
        {
            if (propertyInfo == null) throw new ArgumentNullException("propertyInfo");
            // allow null values

            if (_propertyValues.ContainsKey(propertyInfo)) throw new ArgumentException(string.Format("The property name '{0}' has already been added", propertyInfo.Name));

            _propertyValues.Add(propertyInfo, value);
        }



        public IEnumerable<KeyValuePair<PropertyInfo, object>> PropertyValues
        {
            get
            {
                foreach (KeyValuePair<PropertyInfo, object> kvp in _propertyValues)
                {
                    yield return kvp;
                }
            }
        }



        public PropertyInfoValueCollection Clone()
        {
            PropertyInfoValueCollection propertyInfoValueCollection = new PropertyInfoValueCollection();

            foreach (var kvp in this.PropertyValues)
            {
                propertyInfoValueCollection.AddPropertyValue(kvp.Key, kvp.Value);
            }

            return propertyInfoValueCollection;
        }
    }
}
